My first thought on the show is that the premise seems very much like that of Nightwatch. More akin to the book than the movie, but with a completely different type of mystical beings.
The acting, unsurprisingly, seems a trifle wooden, but it was just the first episode, so the actors are all still feeling out their characters. I’m certain, considering the actors that I’m familiar with, that they’ll flesh out well in very little time, though.
Technically, I like that they kept the effects quite minimal, in an effort to give us more character development and more story, rather than try to wow us with a load of digital nonsense.
I have high hopes for the show, and will keep watching to see if it lives up to those hopes.